4Boats
MG Duff ZSA178 Zinc Shaft Anode 45mm Metric Propeller Shaft Salt Water Anode
MG Duff ZSA178 Zinc Shaft Anode 45mm Metric Propeller Shaft Salt Water Anode
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MG Duff ZSA178 Zinc Shaft Anode (45mm)
Professional Grade Salt Water Cathodic Protection
Protect your vessel's running gear with the MG Duff ZSA178. This zinc shaft anode is specifically engineered for 45mm propeller shafts, providing essential cathodic protection to prevent galvanic corrosion of your metal components. Featuring the renowned "golf ball" shape, this anode is designed for maximum surface area and streamlined performance under the waterline.
Key Features
- ✔ Direct Fit: Precisely sized for 45mm shafts
- ✔ High Purity Zinc: Optimized for salt water use
- ✔ Classic Design: Ergonomic golf ball shape
- ✔ Corrosion Control: Prevents shaft pitting and damage
Technical Specs
| SKU/MPN: | ZSA178 |
| Shaft Diameter: | 45 mm |
| Outer Diameter: | 82 mm |
| Length: | 73 mm |
| Weight: | 1.14 kg |
| Material: | Zinc |
Compatibility / Fitment Guide
| Application | Shaft Size | Water Type |
|---|---|---|
| Metric Propeller Shafts | 45mm Diameter | Salt Water Only |
Reference Cross Reference
| Manufacturer / Variant | Part Number |
|---|---|
| MG Duff (Zinc) | ZSA178 |
| MG Duff (Aluminium Alt.) | ASA178 |
| Force 4 Part No. | 460202-45 |
Questions & Answers
Is this a genuine MG Duff part?
Yes, this is a genuine MG Duff ZSA range anode, widely regarded as the industry standard for cathodic protection in Europe.
Can I use this in fresh water?
No. Zinc anodes are designed specifically for salt water. For fresh water, we recommend using Magnesium (MSA range), and for brackish water, Aluminium (ASA range) is preferred.
When should I replace this anode?
You should replace the anode when it has wasted away by approximately 50%. It is common practice to replace them annually during haul-out.
Note: Please verify your shaft diameter using a caliper before ordering to ensure the perfect fit. Visit 4boats.co.uk for more technical support.
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